Philosophy is life's dry-nurse, who can take care of us - but not suckle us.

The truly simple way of presenting Christianity is to do it.

Christ has not only spoken to us by his life but has also spoken for us by his death.

During the first period of our lives the greatest danger is not to take the risk. When once the risk has been taken, then the greatest danger is to risk too much. By not risking at first one turns aside and serves trivialities; in the second case, by risking too much, one turns aside to the fantastic and perhaps to presumption.

Prayer is a silent surrendering of everything to God.

Knowledge is an attitude, a passion, actually an illicit attitude. For the compulsion to know is like dipsomania, erotomania, and homicidal mania, in producing a character that is out of balance. It is not at all that the scientist goes after the truth.

Men are not on such intimate terms with the sublime that they really can believe in it